4th Feb 2026 11:55
(Alliance News) - The JP Jenkins-15, an index of the largest companies listed on the UK share dealing platform, fell back slightly at the start of 2026, having gained more than 20% in all of 2025.
The index declined by 0.2% to 1,207.4 points at the end of January from 1,209.1 at the beginning. It remains up from its baseline of 1,000 points at the start of 2025.
London-based JP Jenkins provides a matched bargain platform for unlisted companies.
The index is market capitalisation weighted, and the next quarterly re-weighting of the index will be in April. This ensures that the inclusion of new companies with larger market capitalisations in the index doesn't skew its calculation.
By Tom Waite, Alliance News editor
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